Observatory · observe first
Follow the allocation change
Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.
Historical time machine
Historical observation
20182026
Universe›Materials›Paper & Plastic Packaging Products & Materials›Paper & Plastic Packaging Products & Materials
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Materials
Paper & Plastic Packaging Products & Materials0.15%-0.17 ppIndustrial Gases0.51%-0.13 ppSpecialty Chemicals0.41%-0.13 ppConstruction Materials0.25%+0.10 ppGold0.20%+0.07 ppSteel0.16%+0.07 ppCopper0.16%+0.04 ppFertilizers & Agricultural Chemicals0.13%-0.03 ppMetal, Glass & Plastic Containers0.03%-0.01 ppCommodity Chemicals0.04%-0.00 pp
3 · Sub-industry
Inside Paper & Plastic Packaging Products & Materials
Paper & Plastic Packaging Products & Materials · weight
0.15%
Industry change · 12M
-0.17 pp
Paper & Plastic Packaging Products & Materials · contribution
-0.174 pp
Company participation
20%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2026 · sorted by absolute contribution to 12-month change
| Company | Country | Market cap | Universe weight | 3M contribution | 12M contribution | 12M price return | Above 6M weight average |
|---|---|---|---|---|---|---|---|
| Amcor → AMCR | United States | $17.9bn | 0.031% | +0.000 pp | -0.118 pp | -9.5% | No |
| International Paper → IP | United States | $17.7bn | 0.031% | -0.001 pp | -0.026 pp | -26.6% | No |
| Smurfit Westrock → SW | United States | $21.6bn | 0.037% | +0.004 pp | -0.014 pp | -2.1% | Yes |
| Avery Dennison → AVY | United States | $12.2bn | 0.021% | +0.000 pp | -0.010 pp | -8.6% | No |
| Packaging Corporation of America → PKG | United States | $19.5bn | 0.034% | -28.392 pp | -0.006 pp | +16.1% | No |
Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.